# 算术运算符

print("1+2=",1+2)
print("11-2=",11-2)
print("3*2=",3*2)
print("9/2=",9/2)
print("9//2=",9//2)
print("9%2=",9%2)
print("9**2=",9**2)

# 像+=,-=,*=,/=,//=,%=,**=这样的赋值运算符不再演示